Israfel
Israfel is the first Angel to be engaged by two Evas simultaneously and, due to the damage incurred to Tokyo-3's intercept system, is also the first to be intercepted by NERV as opposed to the UN and/or JSDF.  Despite being attacked by both Units 01 and 02, Israfel manages to dispatch of both its opponents due to the Angel's unique ability to separate into two separate Angels.  Besides this bizarre ability to separate its self, Israfel also possesses some kind of offensive laser weapon, though its destructive power is somewhat lacking compared to the destructive arsenals at the disposal of most of the other Angels.  Israfel's AT field is also extremely poor, however, the Angel is fairly agile and also possesses a set of razor sharp claws, and is hence therefore well suited to close quarter assault.
Also known as "the burning one", Israfel has the duty of blowing the trumpet on Judgment Day, and as such is an angel of resurrection and song. When the Evangelion Israfel initially presents itself in episode 9, Asuka thinks it will be a pushover, and attacks. Israfel splits into two identical angels, and defeats both Unit-02 and Unit-01. The U.N. attack the angel with N2 mines, blowing away much of the Japanese countryside, but only managing to temporarily disable the angel for 6 days. To successfully attack this pair, Shinji and Asuka have to be in perfect synchronization with each other, and to achieve this, they practice on a sort of musical dance board, much to Asuka's disgust. She never wants to admit that she needs anyone's help for anything. The final right scene becomes one of synchronized combat against the angel, choreographed to a Beethoven (?) musical score (quite pretty - really)